Synonyms for Seaward (same or very similar meaning)
WordNet sense 1 ((of winds) coming from the sea toward the land):
inshore, onshore
WordNet sense 2 (located on or near or bordering on a coast):
coastal
WordNet sense 3 (in the direction of the sea):
seawards, asea, toward the sea
From the ODE community, based on WordNet
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